Best way to list files in a directory by extension

[guyfromfl]

I have a script that works perfectly, for one type of file extension.

 

What I want to do now is be able to list all files in a set of file types.

 

I want to pass the argument to the fileSystem class's loadFiles method like this:

 

$some_var = $fileSystem->loadFiles(DATA_DIRECTORY, "csv,xls,etc");

 

Then in the loadFiles method it reads the dir for each file, then test its extension.  If they are of the right type, then push it on the returned array.

 

Now I am having problems testing if the file's extension is in the array.  If I use

 

if (strpos(getExt($file),  $array_of_wanted_exts))...

 

php would match php3..

 

Does anybody have a better method?

[guyfromfl]

What if I exploded $$array_of_wanted_exts and searched the extensions in that list?

[ignace]

class RecursiveFileExtensionFilterIterator extends RecursiveFilterIterator
{
    private $validFileExtensions = array();
    
    public function __construct($recursiveIterator, $validFileExtensions) {
        $this->validFileExtensions = $validFileExtensions;
        
        parent::__construct($recursiveIterator);
    }
    
    public function accept() {
        return in_array(pathinfo($this->current(), PATHINFO_EXTENSION), $this->validFileExtensions);
    }
}

foreach(new RecursiveFileExtensionFilterIterator(new RecursiveDirectoryIterator('.'), array('php')) as $file) {
    echo $file->getFilename(), "\r\n";
}

[guyfromfl]

damn, thats sexy.

 

I'm out of here in 10 minutes, so I'll build a class tomorrow and let you know how it goes.

 

Thanks!

[AbraCadaver]

That is sexy, but I would go for simpler.  Either pass in an array of file extensions, or explode for one and use in_array() if you're looping through a directory with readdir() or some such.  But I would probably glob():

 

function loadFiles($directory, $extensions) {
    $pattern = '{*.' . implode(',*.', explode(',', $extensions)) . '}';
    return glob($directory . '/' . $pattern, GLOB_BRACE);
}
$some_var = loadFiles(DATA_DIRECTORY, "csv,xls,etc");